samtecoptical solution · 2018. 11. 19. · • an introduction to cobo (consortium for on board...
TRANSCRIPT
SAMTEC OPTICAL SOLUTIONJUNE 15th, 2016
• Acquisition of AlpenIO by Samtec in 2011
• Core Technical and Management teams mostly from LightLogic (acquired by Intel in 2004) , Intel, Sumitomo, AlpenIO (Acquired by Samtec in 2011)
• Additional talents from Sumitomo, JDSU, Santur, Kaiam, Nortel and NeoPhotonics.
• 25+ Engineers in Santa Clara focus on product definition, development and qualification.
• Additional technical staff in Colorado, Indiana, Pennsylvania and Oregon focusing on manufacturing, tooling, SI and process and qualification
SAMTEC OPTICAL GROUP
SAMTEC OPTICAL GROUP
• FireFly technology overview
• Example of FPGA application deployment.
• PCI over FireFly overview
• An introduction to COBO (Consortium for On Board Optics)
OUTLINE
• The key advantages of FireFly are: Smallest pluggable transceiver in the industry Support up to 28Gb/s line rate Pluggable, ease of system assembly No mounting screws. Easy routing / Break out region Copper and Optical cable options on the same connector set. Forced air and conduction cooling options Flexible end 2 options Data, data rate and protocol agnostic
Ethernet, Infiniband, Fiber channel, etc.
Interoperable with QSFP, CXP, Ethernet, Fiber channel, etc.
WHY FIREFLY™ ?
FIREFLY™ - DENSITY LEADER
265Gb/sq inch168 Gbps in < .75 in2 PCB
Copper Flyover Cables Optical Micro-EnginesFireFly™ 14/28 G connectors
Optical Electrical
HIGH-SPEED INTERCONNECT SYSTEM
Flat Heatsink Grooved Heatsink Pin Fin Heatsink
Full AOC Half Cable Bidirectional Cable (Y Cable)
Tx
Rx
Tx Rx
(Cold Plate) (Cold Plate) (Air Cooled)
Tx or Rx
OPTICAL FIREFLY™ CONFIGURATIONS
End 2 Options
Transmitter Receiver
FIREFLY™ X12 BLOCK DIAGRAM
FIREFLY™ X4 BLOCK DIAGRAM
Transmitter / Receiver
FIREFLY OPTICAL ENGINE, ROADMAP
PART Alphasample
Pre-release
Full-Release
ECUO x12 14Gb/s (transmit, receive, Y cable) 2014
ECUO x12 28Gb/s (transmit, receive, Y cable), no CDR Now Q4’16 2017
ECUO x4 14Gb/s (14G x4 duplex) Now Q3’16
ECUO x4 28Gb/s (28Gb/s x4 duplex), no CDR Now N/A* N/A*
ECUO x4 28Gb/s (28Gb/s x4 duplex), with CDR Q3’16** Q4’16** 2017
ETUO x12 10Gb/s (transmit, receive, Y cable, extended temperature) Now Q3’16
ETUO x4 10Gb/s (10Gb/s x4 duplex, extended temperature) Now Q3’16
ECUO x12 16Gb/s (transmit, receive, Y cable) Now TBD TBD
ECUO x4 16Gb/s (16Gb/s x4, duplex) TBD TBD TBD
* Transition to CDR version** Form factor planned
LONG TERM ROADMAP
28G x4 Bidi(sample only)
28G x12 Bidi
28G x4 Bidiw/CDR
“COBO“28G x8 Bidi
w/CDR
28G x12 Bidiw/CDR
?
SiPho28G x4 Demo
“COBO“28G x8 Bidi
w/CDR
VCSEL56G x8 PAM4
SiPho56G x8 PAM4
100GWDM
Many Chan
?
• Xilinx Virtex UltraScale FPGA VCU1287 Characterization Kit• Samtec FireFly evaluation boards, 100m of fiber• Successful demonstration at 25Gb/s and 28Gb/s• Four channel running simultaneously.
TEST AT 25Gb/s WITH XILINX EVALUATION BOARD
• Altera, ARRIA 10 FPGA evaluation board• Successful demonstration at 25Gb/s
TEST AT 25Gb/s WITH ALTERA EVALUATION BOARD
• Connects multiple FPGAs and a PC host using one PCIe connections• Altera StratixV GS FPGA (5SGS)• 168 Gb/s sustained optical I/O • 32G on-board DDR3 memory for data intensive processing
Courtesy Guzik T&M.
GUZIK PCIE BRIDGE CARD
• Connects multiple FPGAs and a PC host using one PCIe connections• 168 Gb/s sustained optical I/O • Two Altera ARRIA 10 FPGAs, with up to 2.8TeraFlops
GUZIK 2ND GENERATION PCI BRIDGE CARD
PENTEK• Xilinx Virtex 7 processing board• VITA 66.4 backplane optical
interface• VITA 57.1 FMC connection
Hitech Global• Xilinx Virtex 7 processing board• 157.6 Gb/s data transfer
SOME OTHER EXAMPLE:
• x10 10G Bidirectional Firefly on FMC
In collaboration with CrossfieldIn collaboration with Techway
OPTICAL FMC ADAPTER
ALPHA-DATA : 28Gb/s SOLUTION
• ADM-PCIE-8V3 board, general FPGA board• With Xilinx Virtex Ultrascale FPGA• Two x4 28Gb/s FireFly• 8 lanes PCIe• Two QSFP 28
Motivation
• PCIEO (using Ipass connector) cannot do PCIE x16
• The Ipass connector is very large and cannot be used in dense application
PCIe OVER FIREFLY
ADAPTER CARD RECONFIGURABILITY
• Reconfigurable via Switches and face plate:• x4• Dual x4• Quad x4• x8• Dual x8• X16
• PCIe specific FW to support• In-band sideband support
• RSET and PRST• Optical idle
ADAPTER CARD
32 Port PLX Switch
Four x4 Data Connectors with inband sidebands
Connector for Optional Sideband Implementation
SMALL FORM FACTOR COPPER PCIE
Takes advantage of Samtec’s large range of connectors and cables• Passive Copper
• Inside box / chassis ≤ 1 m
• Active Copper• Inside box / chassis ≤ 2 m
• Flyover Cable to Front Panel Connector• External connectivity through front panel
Consortium for On-Board Optics [COBO]
• Started at OFC2015 [March 2015]
• Goal is to standardize on-board optic solution. - Not the optical module but the solution (Connector, Mechanical, envelope, monitoring interface, Thermal)
• Mainly led by Microsoft and their supplier (Juniper, Cisco, Arista, Mellanox,…
• Samtec has been participating in COBO since June 2015.
• COBO preliminary spec target end of 2016
COBO: AIMED AT A 1 RU SWITCH
SwitchChip
Illustration for example only
Heatsink
On-board modules
Faceplate optical connectors
Fibers
Air intake
FANS
COMPARISON OF TECHNOLOGY
SFP x1 lane
QSFP x4 lanes
Micro-QSFP x4 lanes
QSFP-DD x8 lanes
DRIVER FORCE BEHIND COBO: FACEPLATE DENSITYEVOLUTION OF SWITCH I/O BANDWIDTH CAPABILITY
I/O bandwidth (Tb/s) Lane Speed (Gb/s) Modulation type Optics type Height
3.2 25 NRZQSFP28 1RU
On board 1RU
4.8 25 NRZ
QSFP28 2RU
µQSFP 1RU
On board 1RU
6.4 25 or 50 NRZ/PAM4
QSFP28 2RU
µQSFP (25G), 3 row 1RU
µQSFP (50G), 2 row 1RU
QSFP-DD (25G) 1RU
On board 1RU
12.8 50/100 PAM4µQSFP (50G) 3 row 1RU
On board 1RU
25.6 100 PAM4TBD
On board 1RU
2015
2017
Increase in IO bandwidth Increase in line rate Increase in front panel density
COBO BOUNDARIES
• COBO wants to address: INTERFACE WITH HOST SYSTEM- Electrical connectivity- Mechanical dimension- Thermal / cooling capability- Fiber management and connectivity- Signal integrity requirement
• COBO is not going to address:- Optical specification
- System level architecture of the board
SAMTEC is proposing the FireFly concept as a solution for COBO
SAMTEC INTEREST IN COBO
Two connectors solution: Edge connector for high speed signalsLower speed connector for power and controlEasy plug in solution
Samtec technology competes with other connector supplier solution (based on LGA or vertical connector) within COBO to become COBO’s solution.
Decision on connectors to be made in Q2-Q3 2016
SAMTEC’S SOLUTION ADVANTAGES SUMMARY
• No compression Hardware needed• Ease of installation• More board space• Easier trace routing• High density• Simple Heatsink Installation
• Edge card connector• Easy routing and breakout region.• Possibility to add components on the bottom of the boards.• Flexibility to adjust heatsinking via the board (using thermal pad below the board)
• Footprint Flexibility• Increase separation between two connectors• Increase width with same optical engine design
• Robust mechanical design• SMT Anchor posts/weld tabs for a rugged design• Integrated latching feature in connector
BACKUPS
• Hyperscale data center growth
DRIVER FORCE BEHIND COBO
Source: Microsoft
DRIVERS BEHIND COBO
• Current Pluggable optic cannot support next generation switch capability for faceplate density.
1 RU, 32 QSFP28 3.2Tb/s
1 RU, 48 µQSFP28 4.8Tb/s
1 RU, 16MPO connectors 4.8Tb/sEasily expendable to 32 or more
Other factors: New QSFP Double Density (work started) release dateCooling capability (advantage to mid board optic)
• Propose a modified FireFly concept with:- Wider UEC5 connector to support x8 and x16 lanes
(probable choices of COBO transceiver width)- Improved SI performance on the UEC5 to support 50Gb/s NRZ and 50Gb/s PAM4 signaling- Modified UCC8 connector to support the added lanes for powering and status monitoring.
SAMTEC PROPOSED SOLUTION FOR COBO
Miniature 2 Piece Edge Card connector• UEC5 Series - 0.5 mm pitch• High speed data only• 12 Differential Pairs (GSSG)• Designed for 28 Gb/s• Rugged weld tabs• Easy Breakout Region layout
• UCC8 Series - 0.8 mm pitch • Power supply pins• Low speed control signals• Latch locking mechanism• Rugged weld tabs
PCB Footprint: 18.6 mm x 11.5 mm x 4 mm
FIREFLY™ BOARD CONNECTOR